Agamem Microelectronics Inc.
AA88347AP
8-BIT DAC
FEATURE
12 bits serial data input(3 wire serial data
transfer method, DI, CLK, LD)
R-2R resistor ladder used for D/A conversion
8 channels with 8-bit resolution monotonic D/A
converted
8 channel buffer operational amplifiers operating
in the full voltage range from VCC to GND only
if VDD=VCC and VSS=GND
Max. 2.5 MHz serial digital data input
Serial I/O for cascade application
Max. 1.0 mA output drive/sink current
Two separate power supply/ground lines for
system and analog power supply
Single +5 V system power supply
Pin Assignment
(Top View)
VSS
AO2
AO3
AO4
AO5
AO6
AO7
VDD
1
2
16
15
GND
AO1
DI
CLK
LD
DO
AO8
VCC
AA88347AP
3
4
5
6
7
8
14
13
12
11
10
9
DESCRIPTION
The AA88347AP is a CMOS processed
digital to analog converter (DAC) with 8-bit
reso- lotion, low leakage current and low
operating current. The AA88347AP has 8
channels with build in operational amplifier
output buffers which could operate in the
full-swing voltage range from VCC to GND
and enhance the Drive/Sink ability up to max.
1mA.
Digital data (DI) input serially in a max. 2.5
MHz clock (CLK) rate. The latched 12-bit
digital data is converted into an analog DC
voltage in the range from VSS to VDD with
8-bit resolution in one of the eight channels by
the D/A converter in a max. 100μs settling
time.
AA88347AP is a single 5V power DAC.
Analog DC output could be full voltage swing
as the analog power is equal to the system
power
.
In addition to normal D/A converter
applications, AA88347AP is also available for
electronic volume and instead of potentio-
meters for adjustment due to its high stability
on the capacitive load.
.
16 pins TSSOP package type are available
for AA88347AP. Its operational temper- nature
range is specified over –20℃ to 85℃.
1
2006/7/5
AGAMEM [ AGAMEM MICROELECTRONIC INC. ]
